package com.itheima.reggie.controller;

import cn.hutool.core.util.IdUtil;
import com.itheima.reggie.Util.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.List;

/**
 * 分类管理
 */
@RestController
@RequestMapping("/category")
//日志注解，log的由来
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Category category){
        //雪花算法生成id
        category.setId(IdUtil.createSnowflake(1,1).nextId());
        category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
        Long empId = (Long) request.getSession().getAttribute("employee");

        category.setCreateUser(empId);
        category.setUpdateUser(empId);
        log.info("category:{}",category);
        categoryService.save(category);

        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize){
        List<Category> pageInfo = categoryService.getPageInfo();
        log.info(pageInfo.toString());
        //分页查询
        return R.success(Page.PageConstructor(categoryService.getPageInfo(),page,pageSize));
    }

    /**
     * 根据id删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id){
        log.info("删除分类，id为：{}",id);

        categoryService.removeById(id);

        return R.success("分类信息删除成功");
    }

    /**
     * 根据id修改分类信息
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);

        categoryService.updateById(category);

        return R.success("修改分类信息成功");
    }

    /**
     * 根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        return R.success(categoryService.getCategoryName(category));
    }
}
